But they cautioned that only time will tell if Guzmán's arrest means that the rival Juárez Cartel will try to retake the Ciudad Juárez turf it lost in 2008, when the Sinaloa swept in and turned the drug shipment region that touches Mexico's border with El Paso into a killing field. The drug war there has claimed more than 10,000 lives since then.

Guzmán, one of the most wanted men in Mexico, who was also sought by U.S. authorities, was captured early Saturday morning in Mazatlán. His arrest comes nearly 13 years after escaping from the Puente Grande prison in the Mexican state of Jalisco. The capture occurred at 6:40 in the morning and was confirmed Saturday afternoon by Lic. Jesús Murrillo Karam, the Mexican attorney general, who said the government was 100 percent certain that the man they would soon parade in front of cameras was Guzmán.

Howard Campbell, author of the book Drug War Zone and an anthropology professor at the University of Texas at El Paso who specializes in drug trafficking and border culture, said Guzmán's capture, though significant, should not dramatically alter life in Juárez.

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Guzmán is said to have controlled the drug shipment region that includes the Mexican state of Chihuahua and runs northward into the United States since the years-long war with his former allies in the Juárez cartel.

"I feel like there might be a bit of reacomodo (reorganization), a sort of jockeying for position, but I don't think Chapo Guzmán is indispensible," Campbell said. "I think other people can replace him and run the business."

Guzmán, a former peasant laborer who decades later was listed as one of the world's richest men by Forbes magazine, made agreements in Juárez, Campbell said. Those will likely be honored.

Phil Jordan, the former director of the El Paso Intelligence Center who was also a senior inspector with the Drug Enforcement Administration, said what happens on the border could hinge on when, or even if, Guzmán is extradited to the United States to face multiple charges here.

"It remains to be seen what kind of power struggle is going to ensue if Chapo Guzmán stays in Mexico," he said. "If he's extradited, the whole ball game is going to change. But with the arrest of a godfather of this nature there will always be a power struggle, and Juárez is not immune to that situation."

Jordan said the arrest takes Guzmán out of the drug game - for now. But he cautioned that Guzmán has escaped before. And he referenced the July 2013 release by Mexican officials of Rafael Caro Quintero, a legendary drug kingpin in Mexico who was allegedly involved in the murder of Drug Enforcement Administration agent Enrique "Kiki" Camarena, whom Jordan knew well. Caro Quintero was an associate of Guzmán's in the Sinaloan boss' early years.

"Until I see him (Guzmán) in a federal jumpsuit in the U.S., I am skeptical as to what is going to happen," Jordan said. "As soon as they see where the pieces of the puzzle are falling it will be a power struggle. But right now if we take Chapo Guzmán off the radar it gives t he Juárez cartel a significant standing."

David Ramirez, a former U.S. Border Patrol agent who retired as an assistant special agent in charge at the U.S. Department of Homeland Security and served in the U.S. Embassy in Mexico, sees things differently.

"Even if he gets extradited it will be business as usual," said Ramirez, an El Paso native. "I don't see any other groups taking a run at the Sinaloa cartel."

The arrest marks the latest in a series of major accomplishments by the administration of Mexican President Enrique Peña Nieto. The president is a member of the Institutional Revolutionary Party, which ran Mexico for more than 70 years before the rival National Action Party took the helm in 2000. Peña Nieto said initially that he would concentrate less on capturing high-level capos and instead focus on fighting street crime and advancing reforms within the country's judicial and law enforcement agencies. But since taking office in December 2012, Peña Nieto's administration has also overseen the capture of Miguel Treviño Morales, the alleged leader of the Zetas cartel, which battled Guzmán's group for control of the drug shipment region that includes the Mexican states of Nuevo Leon and Tamaulipas, which border Texas' Webb County.

On Saturday, Peña Nieto posted several congratulatory tweets on Twitter, promoting his administration's latest coup. But not all are sold.

Ramirez said observers need to look beyond the headlines and acknowledge the complicit role of the United States in Mexico's drug war.

"Another hollow victory in the 'war on drugs,' the usual back-slapping fanfare and political maneuvering on the arrest of yet another 'Largest Drug Kingpin' - a momentum kept by U.S. government funding in the billions of dollars," he wrote in an email. "... It is surprising that after more than 40 years of this 'war' and countless arrests of the 'Largest Drug Kingpin,' we, the American public, still fall for the same ploy."

Campbell was also hesitant to heap praise on Mexico's president.

"I don't think he deserves any more credit that anybody else," he said. "... From time to time there will be these golpes publicitarios (publicity hits). They are trying to impact public opinion and affect their image, but it's not necessarily a systematic attempt to eradicate drug trafficking or corruption."

Campbell added that Saturday's events could have been in the works for some time.

"In Mexico, when things like this happen, it's not by chance. It's because the political timing is right for it to happen," he said.